>>We've had plans for a long time to make targets dependent on the
>>Jamfiles that specify them. That wouldn't preserve Scons' nice property
>>that you can edit the SConscript in benign ways (like adding comments)
>>without causing a rebuild.
>>
>>
> Even that would be an useful improvement.

Actually, come to think of it, we were planning on dumping the actual
options used to build each target so that they could be recovered and
you'd get the same level of granularity as in Scons.